Has there been an official response to this bug? Is this something that the dev team has been able to replicate? Will this fix be in 4.1?

Can someone on the Sencha team comment on this? This bug isn't a deal breaker but it does make the most important page of my application look very sloppy. We're in the testing phase of our ExtJS 3 to 4 conversion and it's looking awesome except for this one issue. I have time now and can try to replicate this in a test case but I don't want to go through this if it's something that is already being taken care of.

Do I need to take the time to replicate the issues I have in a basic test case or is this a known issue that's already being addressed?

I see tons of complaints on this forum about load mask issues. I can currently think of 3 but have only mentioned 1 because I didn't want to hijack this thread. So far the official response is that the issue is fixed in 4.0.7, but it's clearly not. Is it being addressed?

I am committed to ExtJs 4.x and will do what it takes to help make it work.

My situation is similar. I have 2 grids on 2 different cards in my employee section that share the same store. One is a full employee list with a lot of info, the other "jump to" list using just their names. On the page with the full grid it works great. On the employee details page the small "jump to" list is displayed and I get the load mask in the corner.